public class Question02 {
    public static void main(String[] args) {
        int a = 10000;
        int b = 1;
        //int b = 0;
        //while (a>0){
        // a=a/2;
        // b++;
        // }
        while (a / 2 != 0) {
            a = a / 2;
            b++;//b=b+1;
        }
        System.out.println(b + "天花完");

    }
}
